Nov 21, 2009 5:30am EST
that the united states call for a complete moratorium on catching all atlantic blue fin tuna. >> reporter: but consumers can help. to save the blue fin tuna, environmental groups are campaigning to get consumers to stop ordering toro when eating sushi. protesters in london locked the doors of nobu sushi restaurant there to get their point across. here in washington, spices on connecticut avenue said it stopped serving blue fin tuna. don't stop with the blue fin. there are other fish on the sushi menu that a struggling to keep up with our appetite. to help you make better choices, the monday ray bay aquarium has a sustainable sushi guide. you can download it to your pda. it tells what you to avoid and gives you tasty alternatives. shah tacky restaurant in san francisco hands out the guide with its menus. it also came up with creative alternatives to the more overfished species. >> it's tough. it took us a little while to play around with the fish. >> reporter: the chef ended up using an the earntive to the fresh water eel. you know in the modern times we have so many choices.